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Replace REG_MAYBE_DEAD notes with USEs.

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From-SVN: r49079
This commit is contained in:
Nick Clifton 2002-01-22 17:10:57 +00:00 committed by Nick Clifton
parent a0e073b266
commit c14a3a4578
2 changed files with 12 additions and 9 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-01-22 Nick Clifton <nickc@cambridge.redhat.com>
* config/arm/arm.c (arm_expand_prologue): Replace REG_MAYBE_DEAD
note with a USE.
(thumb_expand_prologue): Replace REG_MAYBE_DEAD note with a USE.
2002-01-22 Jason Merrill <jason@redhat.com>
* c-semantics.c (genrtl_compound_stmt): Only check nesting

15
gcc/config/arm/arm.c
View File

@ -8343,11 +8343,9 @@ arm_expand_prologue ()
insn = gen_rtx_MEM (SImode, insn);
}
insn = gen_rtx_SET (SImode, ip_rtx, insn);
insn = emit_insn (insn);
/* Add a reg note to stop propogate_one_insn() from barfing. */
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, ip_rtx,
REG_NOTES (insn));
emit_insn (gen_rtx_SET (SImode, ip_rtx, insn));
/* Add a USE to stop propagate_one_insn() from barfing. */
emit_insn (gen_rtx_USE (VOIDmode, ip_rtx));
}
}
@ -10162,10 +10160,9 @@ thumb_expand_prologue ()
reg = gen_rtx (REG, SImode, LAST_LO_REGNUM);
/* Save it by copying it into a high, scratch register. */
insn = emit_insn (gen_movsi (spare, reg));
/* Add a reg note to stop propogate_one_insn() from barfing. */
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, spare,
REG_NOTES (insn));
emit_insn (gen_movsi (spare, reg));
/* Add a USE to stop propagate_one_insn() from barfing. */
emit_insn (gen_rtx_USE (VOIDmode, spare));
/* Decrement the stack. */
emit_insn (gen_movsi (reg, GEN_INT (- amount)));